1. Department of Gastroenterology; Renai branch; Taipei City Hospital; Taipei Taiwan
2. Department of Psychology; National Chengchi University; Taipei Taiwan
3. Graduate Institute of Clinical Medicine; College of Medicine; National Taiwan University; Taipei Taiwan
4. Department of Internal Medicine; National Taiwan University Hospital; Taipei Taiwan
5. Hepatitis Research Center; National Taiwan University; National Taiwan University Hospital; Taipei Taiwan
6. Department of Medical Research; National Taiwan University; National Taiwan University Hospital; Taipei Taiwan